The writing process for the majority of Metallicaâs albums have followed the same process. A large slew of guitar riffs written primarily by James Hetfield, sometimes Kirk Hammett, and rarely the bandâs bass player, (that now being bass virtuoso Robert Trujillo) are reviewed and selected.
1 Delhi is most polluted city in the world in PM2.5 concentrations. 2  Half of the top 20 most polluted cities were in India, according to data.  PM2.5 is considered most harmful to health.
When Heal the Bay released their annual âBeach Bummerâ list of Californiaâs most polluted beaches last month, there was at least one strange exception: Imperial Beach, San Diego, a beach thatâs been closed because of dangerous bacteria levels 1,600 times in the past decade alone.